尝试了telnet未果：

[root@ ~]# netstat -a|grep 48772
udp        0      0 *:48772                     *:*                                     
[root@ ~]# telnet localhost 48772
Trying 127.0.0.1...
telnet: connect to address 127.0.0.1: Connection refused
telnet: Unable to connect to remote host: Connection refused